George booth



(No Model- G. BOOTH. DENTAL GUSPIDR. No. 597,384. Patented Jan. 18,l898.

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Witnesses.

di Zan/L lfl UNITED STATES PATENT @reiche GEORGE BOOTH, or TORONTO,CANADA.

DENTAL CUSPIDOR.

SPECIFICATION forming part of Letters Patent No. 597,384, dated January18, 1898.

Application led November 2, 1896. Serial No. 610,871. (No model.)

To aZZ wir/om it may concern/s Be it known that I, GEORGE BOOTH, of thecity of Toronto, in the county of York, in the Province of Ontario,Canada, have invented certain new and useful Improvements in DentalCuspidors, of which the following is the specification.

My invention relates to improvement-s in dental cuspidors; and theobject of the invention is to design a simple, cheap, compact, andconvenient form of combined cuspidor and tumbler-rest in which the standof the cuspidor may be placed close to the dent-al chair and thecuspidor readily swung into position before the patient; and itconsists, essentially, of a hollow tubular standard having connected tOthe bottolnend thereof a waste-pipe and at the top having pivotallyswung thereon a suitable valve with radial hollow branch arms, on theend of one of which is secured the tu1nbler-rest and on the other thecuspidorin suitable form, and, further,of a water-supplypipe extendingthrough the base of the tubular standard and provided with a valve nearthe floor and a faucet the stem of which extends up and is supported ina bracket attached to the standard, the said supply-pipe extending upthrough the center of the hollow standard which forms part of thewaste-pipe to a chamber-casing supported on the upper end of the sleeve,from which casing leads a branch supplypipe to the cuspidor and also avertical supply-pipe having a curved upper end for the supply of waterto the tumbler, the parts being constructed as hereinafter moreparticularly explained.

Figure l represents a sectional perspective view of my improved form ofdental cuspidor. Fig. 2 is a sectional det-ail of the ejector, to whichthe tube is *attached for drawing the saliva from the mouth. Fig. 3 is adetail view.

In the drawings like letters of reference indicate corresponding partsin each figure.

A is a central supporting-standard which is formed hollow, as indicated,and B is the base.

C is a sleeve which is screwed into the bottom of the standard, and D isthe bottoni of the waste-pipe, which is screwed int-o the bottom of thesleeve.

E is the supply-pipe, which extends centrally through the standard A andis provided at the bottom with an elbow e, through which extends abranch pipe e', which is connected to the main supply-pipe E. A valve e2is provided which is provided with a long stem es, which extendsupwardly from the valve through a bracket a, attached to or forming partof the standard, and is provided with a turning-knob e4. By having sucha stem supported near the top of the standard it will bereadily seenthat a dentist can without stooping turn the water on or oft.

F is a sleeve which is provided with an an nularshoulder f.ThesleeveFeXtends downwardly into the standard A as far as the Shoulderf, upon which it rests.

F and F2 are radial hollow arms situated diametrically opposite eachother and provided with upwardly-extending elbows f and f2. 0n the.upwardly-extending elbow f2 is secured the minor basin G, provided witha perforated plate g. Upon this plate it is designed to place a tumbleror other suitable vessel for the reception of water, and the plate ismade perforated, so that the water may drain through it into the hollowarm F2.

H is a cuspidor which is secured at the top of the elbowf. The cuspidorHis provided at the top with an annular chamber 7L, the bottom of whichhas perforations h', as shown. The top of the sleeve is closed in andhas a cup t', the exterior of which is threaded.

J is a faucet the bottom of which is enlarged and extends down into therecess The pipe E extends upwardly into the faucet J, as indicated.

I is a washer which is placed beneath the lower end of the faucet andthe bottom of the recess and surrounds the pipe E.

I isa screw-cap which fits onto the enlarged lower end of the faucetJand is screwed down upon the threaded ou ter end of the cup, so as tohold the washer l tight.

J is ahollow chamber in the faucet, into which the top of the pipe Eits. The faucet .l extends upwardly from the walls of the chamber J andhas a downward bend, as shown, the bottoinof such bend being directlyabove the center of the basin G.

j is a branch pipe leading from the cham- IOO ber J'l to the annularchamber h, formed at the top of the cuspidor.

K is an ejecting bent tube which is connected to the water-supply pipeat the lower end of the faucet J and is preferably provided with asuitable tap 7c and a nozzle 7c', extending laterally out therefrom.

7a2 is a hole leading through the nozzle.

7a3 and 7a4 are plugs formed with tapered holes, the narrow portion ofthe taper being next to the hole 7a2. (See Fig. 2.)

b5 is a tube which leads to the mouth and is designed to draw the salivatherefrom. Vhen the water is turned on and passes through the bent tubeK and conical plugs therein, I find in practice that the effect is toproduce a vacuum between the plugs, and the suction thus produced by theflowing water draws the air out Yfrom the tube h5, which passes out withthe water, thus producing a suction through the tube and consequently inthe mouth of the patient, thereby removing the saliva.

Although I show the bent tube K as connected to the faucet J and leadingdown into the waste-pipe connected with the tumblerrest, it will ofcourse be understood that such ejection-tube might be placed at anypoint sel is put on the perforated plate G, any waste water will escapeout through the arm F2 and standard A. As the sleeve F rests looselyupon the top of the standard A it will be readily understood that thearm F', with the cuspidor H, may be swung very readily by the dentist tothe desired position in front of the patient. As the arms F and F2extend directly-out from the sleeve at right angles thereto it will ofcourse be understood that the standard A may be placed in very closeproximity to the dentists chair, and the utilityof my device is therebygreatly facilitated.

WV hat I claim as my invention isl. In combination, the hollow standard,the sleeve rotatably supported thereby,the faucet fixed to said sleeve,the supply leading centrally through said standard and sleeve and intosaid faucet, the cuspidor and tumblersupport arranged on opposite sidesof said standard, the hollow horizontal arms extending in the same planeand supporting said support and cuspidor and having communication withthe bottom of the same and the branch pipes leading to the support andcuspidor from a common chamber in said faucet into which saidsupply-pipe discharges.

2. In a dental cuspidor in combination the hollow standard supportedupon a suitable base and having the waste-pipe connected to the bottomof the standard, a sleeve supported on the top of the standard, hollowbranch arms attached to orformin g part of the sleeve, the tumbler-restand cuspidor supported on the upwardly-extending elbows of the arms, thesu pply-pipe extending up through the center of the standard and havinga branch pipe extending from lthe bottom to the main supply-pipeprovided with'a suitable valve, the cup-shaped recess at the top of thesleeve, the faucet fitting over the top end of the supply-pipe, thebranch su pply-pipe leading' from the faucet to the basin, the lower endof the faucet being enlarged and fitting within the recess around thepipe, a Washer beneath the loWer end of the faucet and a screw-capholding the sleeve and faucet together as and for the purpose specified.

GEORGE BOOTH. Witnesses:

B. Born, H. DENNlsoN.

